Self-feeding coal-stove.



No. 797,295. PATENTBD'AUG, 15,-'19o5 M R., LEHMANN p A., UHNEMUS,

SELF FEEDING GOAL STOVE. in PPMoATIoN FILED HEFT. 22,1904..

2 SHEETS-SHEET 1.

mnnew. mmm co, fluoru-umounwuzns. msumcvom u. c.

PATENTED AUG. l5, 1905. M. R.. LEHMANN' a A. OHNEMUS.

SELF FEEDING GOAL STOVE. APPLIGATION FILED SEPT. 22,1904.

2 SHEETS-SHBET 2.

ANDREW a. Gmumm co, Mormunmnmpnsas, wasnmswn. D r;

ll'lY S'ATES PATENT OFFIOF.

MAX R. LEHMANN ANI) ANTON OHNEMUS, OF QUINCY, .lLLlNO.ltl,

ASSIGNORS TO EXCELSIOR STOVE et lVlANUFr-iOlURlNG OOM- lPANY, OF QUlNOQ lLlilNOlS,

A CORlORAllON.

Speceaton of Letters Patent.

Patented Aug. '15, 1905.

To n/ZZ Ir/71,0111, it 71mg/ colt/10772,:

Be it known that we, MAX R. LEHMANN and ANTON OnNnMUs, citizens of the United States, residing in Quincy, in the county of Adams and State of Illinois, have :invented certain new and useful linprovein ents in Self- Feeding Coal-Stoves, of which the following `is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification.

Our invention relates to a self-feeding softcoal stove, and has for its object to furnish a construction whereby the carbon of the fuel may be the niost effectively consumed as a :result of providing a perforated fuel-niagazine and a surrounding shell concentric therewith, into which. a portion. of the products of combustion enter to be returned by downdraft to the :fire and consumed.

The invention further relates to details of construction of the fuel-inagaziire and to features of construction aside from the niagazine and its inelosing shell whereby combustion is rendered as nearly complete as possi.- ble.

The invention further relates to a construction permitting of ingress and egress of fresh air into the stove outside of the combustionchamber.

Figure l is a vertical section taken thro ugh our stove from front to rear thereof. Fig. ll is a rear elevation of the stove with parts broken away and in vertical section. Fig. Ill is an enlarged horizontal section taken on line Hl lll, Fig. I. Fig. lV is a perspective view of two plates at the rear of the stove.

1 designates the main shell of our stove, at the lower portion of which., at its front side, is a daniper 2, that controls the air passageway leading into the ash-box.

3 is the Ylire-pot within the shell l, and 4l is the grate at the bottom of said. pot.

At the riar of the stove and protruding from the inain shell .is a stovepipe-receiving neck 7, and beneath said neck is an air-inlet 8, that is controlled by a damper Q. At the front of the stove in the main shell is an airinlet 10, that is controlled by a darnper 1. 1.

12 designates a cylindrical inner shell depending within the stove and closed at its upper end. rlhe shell 12 terminates in an open lower end at 13. (See Fig. l.)

14 designates a baffle-plate located interior of the lnain shell 1 and extending to the inner shell 12. This baille-plate is located beneath `the stovepipe-neck 7 and air-inlet 8, and it serves to prevent direct passage of the products of combustion in an upwardly direction to the stovepipe, so that the products of conibustion will be retarded to occasion more complete combustion.

15 (ilesignates a final-magazine, that is located within the inner shell l2, with a space existing between said. shell and magazine to permit free circulation of products of coinbustion. The fuel-nnigazine, which is coniposed of sections, is provided at the ends of the sections with perforations 1.6, that furnish co1ninunication between the interior of the magazine and the space between the magazine and the inner shell l2. At the lower end of the fuel-magazine are a plurality of Ylingers 17, that extend downwardly beneath the lower end of the inner shell, as seen in Fig. l. By having these fingers project below the termination of the inner shell we hold the coal in the lire-pot 3 away from the inner shell to .maintain the space between the lower end of the shell and the fixel-magazine unobstructed in order that there may be free circulation at such point for air and products of combustion, and also a free passage-way for the descent to the fire-pot of line particles of fuel that may escape through the perforations in. the fuel-magazine.

18 designates a fresh-air-inlet llue at the rear of the stove, that extelnls nl )wardly from the stove-base and. at the bottoni of which is an inlet 1). Surmounting this inlet-flue 18 are a air of L-shaped flue-plates 2U, (see Figs. l, ll, and IV) the upturned wings of which fit beneath. a flaring rim 2]., surrounding the main shell oil.' the stove. 22 represents air-flucs, that extend vertically ofthe stove at the rear of the main shell 1 from an airchaniber 2B, formed by the air-illue 18, .in combination with. the liuc-plates 2U. The air-.lines 22 extend to the top ol" the stove and have free connnunication with an airbox 2K1-, that surlnounts the main shell 1 and .is provided with. an exit Z5 Air enters the llue 1.8 through the inlet l?) and on ascending through the .lines 22 becomes heated and is discharged. into the air-box 2st., freni which it escapes through the exit 25 without beconiing impregnated with the products of combustion, and the heated air is therefore delivered into the rooin in Which the stove is located in a pure state.

We claim as our invention- '1. In a stove, the combination of a main outer shellI an inner Shell Within said outer shell having an open lower end, and a fuel- Inagazine Within said inner shell provided With lingers projecting below the lower end of said inner shellI substantial@T as set forth.

2. In a stove, the combination of a main shell, a flaring rim surrounding said inain shell, an inlet air-flue beneath said riin, 'llueplates surmounting said inlet-flue and posi'- tioned beneath said riin, and vertical airlues at the exterior of Said main shell and having communication With said air-inlet flue, and an air-box at the top of the stove With which said vertical air-flues have oommunication said air-box being provided with an exit, substantially as set forth.

MAX R. LEHMANN. ANTON OHNEMUS. ln presence olf- W. M. PIGOTT, GEO. P. SWERTRING. 

